Gabourey Sidibe's Mom Blows 'Em Away on America's Got Talent

Alice Tan Ridley, whose daughter is none other than Precious star Gabourey Sidibe, brought her subway-tuned pipes to prime-time and earned herself a trip to Vegas after bringing the audience to its feet with her slow-burning version of Etta James' "At Last."

"Sing it, mama!" encouraged host Nick Cannon, who was grooving from the wings.

"Alice, millions of people must have gone back and forth on that subway over the 20 years. How come nobody signed you?" marveled judge Sharon Osbourne after the crowd had quieted down.

"Thank you so much," replied the beaming Ridley.

"What an amazing voice," added freshman judge Howie Mandel. "I love what you did and you deserve to be heard by much more than everybody on the train."

Piers Morgan concluded: "In terms of raw talent, the best audition of the day."

And, we suspect, the one everybody's going to be talking about tomorrow.